Improvement in forming joints in glassware



'neither interfcre with the shrinking of the the increased cost and labor of' manuf'acture,

.a secure joint, necessitates the exposure of the Q .with the finish,,and is otherwise objection- UNITED AStrrrrns PATENT i OFFICE;

DANIEL C. RIPLEY, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN FORMING lJOINTS IN GLASSWARE.

Speciti'cation forming part of Letters Patent No. 177,425, dated May 16, 1876; application filed March 25, 1876.

To all whom it may concern Be it known that I, DANIEL O. RIPLEY, of Pittsburg, in the county of' Allegheny and State of Pcnnsylvania, have invented a new and useful Improvement in Method of Forming J oints of' Glassware; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawing, forming a part of this specification, in Which- Figure l is a view, partlyin section, of' a lamp bowl or fount, illustrating my invention; and Fig. 2 is a plan view of a nut having the characteristics which fit it for the purposes of my invention. Fig. 3 is a edge view of the same.

Like letters ref'er to like parts wherever they occur.

My invention relates to the manner of connecting two ormore portions of a glass article. such as a lamp bowl and pedestal, a salver and foot, or an article of' glass with one of' metal, as a bracket and lamp-bowl; and it cons'ists in embedding a piece of metal within the glass at the time the article is formed, or, in other Words, formig the glass upon ad around a piece of metal of s'uch a shape as will glass or be loosened thereby'.

Heretofore several methods have been adopted for uniting the parts of a glass article, as, for instance, the well-known manner of sticking the parts by means ofa bit/7 and also by means of sockets and pegs forned in and on the several parts which were subscquently cemented together. This latter method has likewise been employed for securing glass bowls to metallic pedestals.

The objections to the foregoing methods are 'and the insecurity of the joints formed.

ln a patent granted to me May 2,6,1874, and numbered 151,435, is described a method for attaching handles or socket-pieces to glass- Ware, consisting in inclosing a portion of the glass article .within the metal band; but such a method, though effective, and productive of metal, Which, in many instances, interferes able.

The present invention, in so far as the glass ing glass, if the article is allowed to chill in the mold and around the plunger, the article, though more readily removed from the mold, cannot be readily detached from the plunger. With these'facts in view, I shape the metal to be embedded in the glass so that it shall taper from center to circumference, so that as the glass shrinks or contracts it shall ride down the bevels, or pass from a thicker to a thin'ner lportion of the metallic piece.

In the drawing, Figs. 2 and 3 represent a metallic nut or socket piece, havin'g the characteristics indicated; a t'apering collar, a, and radiating points b b, beveled, as at c, in a direction the reverse of' the taper of the collar a, so that all the lines recede from the center of the metal piece.

Having provided a metallic' piece With the features indicated, it is placed in the mold and secured in the desired position,after which the glass is blown, pressed, or otherwise forned upon or around it. VVlen the article is removed from the mold, that portion of the glass which surrounds the-metal will shrink or contract in lines radiating from the center of the metal, and, as all boundary-lines of the metallic article are beveled, or recede from said center, there will be nothing to obstruct the contraction of the glass. lf the metal is prop- 'erly beveled; the glass will set or chill before it has contracted sufficiently to free the metal. I do not herein linit myself to the form shown, for various f'orns having vtle characteristics speciiied as essential may be readily devised. Neither do I confine myself to tapping the metal to make a joint, for the reason that a projecting peg m ay be used, and various p ways devised for making the joint' after the metal has been enbedded and secured in the rlass.

Having tlus described my invention, what `I claim, and desire to secure by Letters Patl. The method herein deseribed for attaehter of the piece, substantiaily as and for the ing' portions of ghssware and metal, the same purpose specified.

eonsisting in enbedding a inetzllie soeket- In testimony Whereof I, the said DANIEL (3. piece, having the eharaete'isties speeified, RIPLEY, have hereunto set; my hand. within the glass article ab the time of forning DANIEL O. RIPLEY. the article. Witnesses:

2. A metallic socket-piece having beveled JAMES I. KAY, edges, the lines of Which reeede from the cen F. W. RITTER, J r. 

